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CVE-2026-26944 is a missing authentication for critical function vulnerability in Dell PowerProtect Data Domain DD OS. A network-accessible privileged function can be reached by an unauthenticated remote attacker due to absent authentication enforcement. If the attacker can cause a legitimate authenticated user to perform a specific action, the flaw can be exploited to execute arbitrary commands as root on the affected system. Affected products include Dell PowerProtect Data Domain appliances, Data Domain Virtual Edition (DDVE), and Dell APEX Protection Storage running vulnerable DD OS versions. Reported affected versions are DD OS feature releases 7.7.1.0 through 8.6.0.0/8.6, LTS2025 8.3.1.0 through 8.3.1.20, LTS2024 7.13.1.0 through 7.13.1.60, and PowerProtect DP Series versions prior to 2.7.9. Dell states the fix adds authentication enforcement to the vulnerable function.
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A missing authentication for critical function vulnerability in Dell PowerProtect Data Domain that could allow arbitrary command execution with root privileges under stated conditions.
A missing authentication for critical function vulnerability in Dell PowerProtect Data Domain that can potentially be chained with CVE-2026-26943 to bypass authentication requirements and achieve root command execution.
A missing authentication for critical function vulnerability in Dell PowerProtect Data Domain DD OS that can allow unauthenticated remote attackers to achieve arbitrary command execution as root with user interaction.
A missing authentication for critical function vulnerability in Dell PowerProtect Data Domain that could allow an unauthenticated remote attacker to execute arbitrary commands with root privileges, with user interaction required.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
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